3646044406463 has 4 divisors (see below), whose sum is σ = 3689972652408. Its totient is φ = 3602116160520.

The previous prime is 3646044406379. The next prime is 3646044406493.

3646044406463 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3646044406463 - 2¹⁶ = 3646044340927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646044406493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21964122848 + ... + 21964123013.

It is an arithmetic number, because the mean of its divisors is an integer number (922493163102).

Almost surely, 2^{3646044406463} is an apocalyptic number.

3646044406463 is a deficient number, since it is larger than the sum of its proper divisors (43928245945).

3646044406463 is an equidigital number, since it uses as much as digits as its factorization.

3646044406463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43928245944.

The product of its (nonzero) digits is 11943936, while the sum is 50.

The spelling of 3646044406463 in words is "three trillion, six hundred forty-six billion, forty-four million, four hundred six thousand, four hundred sixty-three".